框架剪力墙高层结构地震荷载力学响应分析

Analysis of Mechanical Response to Seismic Load of Framed Shear Wall High-rise Structures

高层建筑的抗震性能直接关系到整个结构的安全性,本文以某医院框架剪力墙高层建筑为例,从小震弹性时程分析、中震等效弹性分析、大震弹塑性时程分析三个方面研究了结构的力学响应特征,结果表明:小震作用下,所有结构构件和整体结构性能满足规范要求;在中震作用下,结构的最大层间位移角为1/400,其中关键构件性能验算通过,普通构件和耗能构件均满足性能要求;结构在大震作用下X向和Y向的最大顶点位移分别为0.185m和0.212m,关键构件的损坏程度均为轻度损坏,整个结构仍能保持稳定。本文对结构地震荷载的力学响应分析可为类似工程提供参考。

The seismic performance of high-rise buildings is directly related to the safety of the whole structure.In this paper,a hospital frame shear wall high-rise building was taken as an example.The mechanical response characteristics of the structure were studied from three aspects:small-earthquake elastic time-history analysis,medium-earthquake equivalent elastic analysis and large-earthquake elastic-plastic time-history analysis.Under the action of moderate earthquake,the maximum interlayer displacement Angle of the structure is 1/400,and the performance of the key components has passed the checking calculation,and the common and energy-consuming components meet the performance requirements.The maximum vertex displacement of the structure in X and Y direction is 0.185m and 0.212m respectively under the action of large earthquake.The damage degree of key components is mild,and the whole structure can still maintain stability.The mechanical response analysis of structural seismic load in this paper can provide reference for similar projects.